portal

Hi,

I have always portal as startpage in internet explorer.
I have win 98 se
I have run CWShredder and adaware.
After runnig adaware my original startpage is back but after a while the portal is back.
I also installed google toolbar. It seems that the installation was succesful, but the toolbar doesn't appear.
Here is the hijacklog

Logfile of HijackThis v1.98.0
Scan saved at 21:14:39, on 11/08/04
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\SYSTEM\MSTASK.EXE
C:\WINDOWS\SYSTEM\MDM.EXE
C:\PROGRAM FILES\ALWIL SOFTWARE\AVAST4\ASHSERV.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\TASKMON.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\WINDOWS\SYSTEM\SRV.EXE
C:\WINDOWS\SYSTEM\RPCSS.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\WINDOWS\SYSTEM\DDHELP.EXE
C:\HIJACKTHIS1980.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
file:///C:/Program%20Files/Plus18Point/Portal/portal.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Startpagina =
file:///C:/Program%20Files/Plus18Point/Portal/portal.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
Koppelingen
F1 - win.ini: run=hpfsched
O2 - BHO: (no name) - {49E0E0F0-5C30-11D4-945D-000000000000} -
C:\WINDOWS\SYSTEM\IEHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} -
c:\program files\google\googletoolbar1.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} -
C:\WINDOWS\SYSTEM\MSDXM.OCX
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program
files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [Taakcontrole] C:\WINDOWS\taskmon.exe
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe
powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [Classes] C:\WINDOWS\SYSTEM\SRV.EXE
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe
powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [SchedulingAgent] mstask.exe
O4 - HKLM\..\RunServices: [Machine Debug Manager] C:\WINDOWS\SYSTEM\MDM.EXE
O4 - HKLM\..\RunServices: [avast!] C:\Program Files\Alwil
Software\Avast4\ashServ.exe
O4 - Startup: Microsoft Office.lnk = C:\Program Files\Microsoft
Office\Office\OSA9.EXE
O8 - Extra context menu item: &Google Search - res://C:\PROGRAM
FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmsearch.html
O8 - Extra context menu item: Opgeslagen momentopname van de pagina -
res://C:\PROGRAM FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmcache.html
O8 - Extra context menu item: Gelijkwaardige pagina's - res://C:\PROGRAM
FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmsimilar.html
O8 - Extra context menu item: Koppelingspagina's - res://C:\PROGRAM
FILES\GOOGLE\GOOGLETOOLBAR1.DLL/cmbacklinks.html